I'm using Premiere CS5.5 and have been having issues with the audio/video going out of sync when I upload my video to Vimeo (it's not out of sync prior to uploading it...it only happens after they transcode it). The Vimeo support staff says the problem is that I'm using a variable frame rate, but since there isn't any option (to my knowledge) to choose a constant or variable framerate in Premiere/Adobe Media Encoder, I think I have identified the problem. The primary footage that I shot with is 23.976 fps and that is what my sequence settings and output settings have been, but I also have a lot of still images that I'm using for b-roll, which I finally noticed are 29.97 fps. I changed the Intermediate Media Timebase setting to 23.976 fps in the preferences, but my question now is if there is an efficient way to change the frame rate of all those still images without having to re-import them and re-apply all the various motion effects/key framing that I've already spent a lot of time on?

They said framerate, but I've also tried compressing with both VBR and CBR, and still no luck. It's quite mind-boggling, and I'm not the only person on the Vimeo forums that has been complaining about this issue (losing sync AFTER Vimeo transcodes it). See what they said to me for yourself: https://vimeo.com/forums/help/topic:64703

I even tried exporting an uncompressed version out of Premiere, and then compressing it with Handbrake (www.handbrake.fr), which actually does have an option to choose Constant Framerate or Variable Framerate, but the Vimeo staff said the metadata says my video still has a variable framerate.

I'm suspicious too. Like I said, I don't have any out-of-sync issues with the original .mp4 file or when I upload it to YouTube. You should be able download the original .mp4 file through vimeo: https://vimeo.com/41319312 password: test

If you're using the new Vimeo page, under where it says "Fingerprint Marketing - Rough" and my name, there are tabs that say "Follow", "Add to", "Stats", and "Download"--choose the download one and the original .mp4.

If you're using the old Vimeo layout, if I remember correctly, on the lower right side of the page there should be a link that says "Download this video" (I think that's what it says--I can't see the old vimeo layout), and you'll probably have to right click and save as (if you're on a PC).

I've tried all sorts of presets and configurations of exporting, including the Vimeo preset. It's funny because I've seen threads on the Vimeo help forums with people having the same issue as me, and they'll say something like "You used compressed it with a variable bit rate. Please follow this tutorial and compress it with a constant bit rate", and the ironic part is that in the Premiere compression tutorial they will link to, it says to compress using a variable bit rate (and the Vimeo preset in Premiere uses a variable bit rate). The same goes for when they say you have a variable framerate... none of their tutorials ever mention to use a constant framerate, and the option isn't even in Premiere or a 3rd party program like AVS Video Converter.

Yeah, I downloaded MediaInfo to explore some of the various versions that I've rendered in my effort to get something that works correctly on Vimeo, and depending on the encoder I saw some of what Ann posted, but I also looked at one on MediaInfo that I had rendered through Adobe Media Encoder and it had a Constant frame rate mode of 23.976, yet I remember watching that one on Vimeo at the time and it was still out of sync--Mediainfo says that version has a variable audio bit rate though, but to my knowledge there isn't an option in AME to choose a constant audio bit rate.

I agree that it's an issue on Vimeo's side, but the chances of them getting their **** together in a timely fashion seem low. The frustrating thing is that I can watch documentary style videos on Vimeo that I know were edited and compressed through Premiere/AME, yet they don't have any audio sync issues. The difference that I noticed between one of those videos and mine is the use of still images in my video. As you can see from an image I uploaded earlier, the default frame rate for still images when I imported them was 29.97 until I changed it yesterday, but it didn't update the images I had already imported. So I'm wondering if there is a way to change the frame rate of those still images without having to re-import the images and make all my edits/key framing all over again.

Yes I know that particular one was compressed using Handbrake, but that's probably the 20th different version that I've uploaded. I tried uploading several different versions through Premiere/AME and it was the same outcome once it was uploaded to Vimeo... audio out of sync.